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Calcium absorption from a new calcium delivery system (CCM).
K T Smith1, R P Heaney, L Flora
1Procter & Gamble Company, Miami Valley Laboratories, Cincinnati, Ohio.
Calcified Tissue International
|December 1, 1987
Summary
Calcium citrate-malate (CCM) demonstrated superior absorption compared to calcium carbonate and milk in both rat and human studies. This highly soluble calcium formulation offers excellent bioavailability for supplementation and food fortification.
Area of Science:
- Nutritional Science
- Biochemistry
- Human Physiology
Background:
- Calcium is an essential mineral for bone health and various physiological functions.
- Dietary calcium bioavailability varies significantly depending on the source and formulation.
- Assessing calcium absorption is crucial for effective supplementation and fortification strategies.
Purpose of the Study:
- To evaluate the bioavailability of a novel calcium citrate-malate (CCM) salt.
- To compare CCM absorption against traditional calcium sources like calcium carbonate and milk.
- To determine the efficacy of CCM for calcium supplementation and food fortification.
Main Methods:
- Calcium absorption was assessed in rats using a 6-day retention of an oral tracer.
- Human studies utilized the standard double-isotope procedure to measure calcium absorption.
- CCM was administered as a dry powder and within an orange juice beverage.
Main Results:
- In rats, calcium absorption from CCM was comparable or superior to calcium carbonate and milk.
- Human trials showed significantly higher calcium absorption from CCM versus calcium carbonate and milk.
- Bioavailability of CCM was consistently excellent across different administration forms.
Conclusions:
- Calcium citrate-malate (CCM) exhibits excellent bioavailability.
- CCM represents a valuable and highly absorbable calcium source.
- This formulation can enhance calcium intake through direct supplementation or food fortification.